June 22, 1985

June 22, 1985: Brookfield Zoo stages a birthday party for Ogla the walrus. The 2,000-pound member of a threatened species turned 23. The oldest walrus in U.S. captivity, she arrived at the zoo in 1962 at about six months of age. In 1966, she surprised her trainers by retrieving a cigarette...

June 22, 1985: Brookfield Zoo stages a birthday party for Ogla the walrus. The 2,000-pound member of a threatened species turned 23. The oldest walrus in U.S. captivity, she arrived at the zoo in 1962 at about six months of age. In 1966, she surprised her trainers by retrieving a cigarette... (John Bartley / Chicago Tribune)

June 22, 1985: Brookfield Zoo stages a birthday party for Ogla the walrus. The 2,000-pound member of a threatened species turned 23. The oldest walrus in U.S. captivity, she arrived at the zoo in 1962 at about six months of age. In 1966, she surprised her trainers by retrieving a cigarette...John Bartley / Chicago Tribune